Finding the Fourth Proportional to 59.49, 88.56 and 58.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59.49 : 88.56 = 58.50 : x
2. Step 2: Convert to fraction form
   59.49/88.56 = 58.50/x
3. Step 3: Cross multiply
   59.49x = 88.56 × 58.50
4. Step 4: Simplify right side
   59.49x = 5,180.76
5. Step 5: Solve for x
   x = 5,180.76/59.49
6. Step 6: Final answer
   x = 87.09